US10831865B2 - Medication management device and method - Google Patents

Medication management device and method Download PDF

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US10831865B2
US10831865B2 US14/406,647 US201314406647A US10831865B2 US 10831865 B2 US10831865 B2 US 10831865B2 US 201314406647 A US201314406647 A US 201314406647A US 10831865 B2 US10831865 B2 US 10831865B2
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medication
information
intake
management device
display
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US20150161341A1 (en
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Dieter Maria Alfons Van De Craen
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Lifeline Systems Co
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Koninklijke Philips NV
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    • G06F19/3418—
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
    • G06F19/3456—
    • G06K9/18—
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/10—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • G06F19/321—
    • G06F19/326—
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H70/00—ICT specially adapted for the handling or processing of medical references
    • G16H70/40—ICT specially adapted for the handling or processing of medical references relating to drugs, e.g. their side effects or intended usage

Definitions

  • the present invention relates to a medication management device and a corresponding medication management method as well as a computer program for implementing said medication management method on a computer.
  • Pill boxes have evolved from basic containers to “smart” pillboxes providing extra functionality such as lighting up of the specific compartment when it is time to take the particular medication contained in that compartment, and auditory prompts when the cup is not removed from the compartment within an assigned timeframe. Additional prompt options include automatic phone calls, text messages or e-mails. At the end of each week, or month, reports are available online or by email detailing the pillbox activity.
  • pill dispensers such as the Philips Medication Dispenser
  • the dispenser signals the patient with audible voice prompts when it is time to take the scheduled medication. If the patient misses a dose or there is a problem with the system, the dispenser automatically places an alert call to the caregiver. Further, the status of the system is checked automatically and a report on the status is available online.
  • U.S. Pat. No. 6,535,637 describes a dispenser system for filling a pharmaceutical prescription for medications. It includes automatic verification of the type of medication dispensed as part of a filling operation performed by the system. This verification is done using an image processing technique.
  • U.S. Pat. Nos. 6,018,289 and 6,198,383 describe a device which aids patients in complying with instructions given by a physician for taking prescription medication.
  • the device reminds a patient when the next dose of medication needs to be taken and indicates whether a specified dose has been taken and includes a remote programming feature via a wireless link.
  • the patient receives a small, self-contained, mini-computer that will help him to take medication properly.
  • the device will sound an alarm when it is time to take a medication, and display its name.
  • the care provider can remotely program the NexDose device and review the patient's compliance data that is stored within the device.
  • the project Smart Pill Box aims to deliver a visual verification system that will keep reminding patients to take their medications until they provide visual proof of taking the pills out of the box and lifting them up to their mouths to ingest.
  • the system uses a low-cost computer and webcam that detects the face of a user and then attempts to track a hand as it moves towards the user's mouth. This action is considered as the taking of the pill.
  • the software will also notify a user if he has taken his pills already for the day.
  • the software currently tracks a colored dot on the back of the user's hand in order to accomplish a primitive form of hand-tracking.
  • Both the pill boxes and dispensers are assumed to be filled correctly each week/month by either the patient or a caretaker. This inhibits changes to the medication or doses without a physical intervention of the patient or a caretaker. For example, in case the filling process is done by the pharmacist, one needs to return the unit when the medication changes. Moreover, this filling process can be error prone. In these systems, there is no verification step that ensures the correctness at the moment when the medication is taken. Further, larger and higher capacity pill dispensers are not suitable for use when away from the home. These units need to be placed in a central location and be easily noticeable to avoid missing medication intakes. Pill boxes that contain medication for multiple days do not fit in pockets and are not very suited for being carried in a pocket.
  • a medication service such as NexDose uses a mobile device that alerts a user to take a medication by sounding an alarm and displaying the name of the medication. While this approach allows the medication regimen to be easily adapted, it still does not contain a verification step that ensures the correctness at the moment when the medication is taken. Finally, current solutions often fail to take the patient safety into consideration. It is well known that multiple medications also result in adverse drug reactions, heavy side effects, and unwanted interaction effects.
  • a medication management device comprising
  • an imaging unit for capturing images of a medication
  • a medication identification unit for identifying said medication by use of one or more captured images of said medication based on a medication database
  • a display for displaying in real time captured images including said medication and overlaid medication information about said medication including medication identification information obtained by said medication identification unit.
  • a computer program which comprises program code means for causing a computer to perform the steps of the medication management method when said computer program is carried out on a computer or other programmable entity.
  • the present invention thus provides a solution that identifies the medication based on a video or image input and a database that contains the properties of medications.
  • Feedback is provided by augmenting the captured image data, preferably video data, showing the medication in its real environment in which it is captured by the image data, with information on the detected medication and discrepancies.
  • This feedback can be extended to display, among others, discovered drug interactions.
  • a mediated reality component is created by using the captured images and in real-time overlaying feedback to the user, e.g. a patient or care-giver.
  • the known solutions use a single image which is static and provide feedback as, for example, text on a display.
  • the advantage of the proposed solution is that the end-user (e.g. a patient) views a live view of the medication which is augmented by the feedback and additional information including at least medication indication information.
  • This provides the ability to image one or more medications at the same time. Further, in an embodiment it is possible to sweep over different medications that are, e.g., lying on the table in front of the user to search for a particular medication which should be taken.
  • said imaging unit is configured to capture video data of a medication and wherein said display is configured to display said captured video data in real time. This provides immediate and illustrative feedback to the user.
  • said medication identification unit is configured to identify characteristic features, in particular size, color, shape, logo and/or inscription, of the medication and for identifying the medication based on said identified characteristic features and said medication database containing a plurality of medications, their characteristic features and medication description, in particular active components, interactions, side effects and intake information.
  • Said medication database may be stored in the medication management device in a medication database storage for storing said medication database.
  • a medication database storage for storing said medication database.
  • some of the medications may be stored externally, in which case the device preferably comprises an interface for contacting one or more externally stored medication databases, in particular via a computer network or a communications network.
  • said device comprises a medication intake information unit for obtaining medication intake information based on the medication identification information and a medication intake scheme specifying which medication shall be taken at which point in time, wherein said display is configured to display said medication intake information as part of said overlaid medication information.
  • the proposed device and method can evaluate a medication intake scheme that specifies which medication needs to be taken at which point in time to determine if it is the right medication that is currently detected or if there is any discrepancy between the medication that should be taken and the medication that is detected.
  • Said medication intake scheme may be stored in the medication management device in a medication intake scheme storage for storing said medication intake scheme.
  • a medication intake scheme storage for storing said medication intake scheme.
  • the device preferably comprises an interface for contacting an externally stored medication intake scheme, in particular from a health record or a medication management service via a computer network or a communications network.
  • said medication intake information unit is configured to obtain, as part of said medication intake information, information about discrepancies between the identified medication and the medication intake scheme and/or the correct or wrong amount and/or possible interactions between the identified medication and medication contained in the medication intake scheme or previously identified medication.
  • said medication intake information unit is configured to obtain, as part of said medication intake information, information about missing medication and wherein said display is configured to display a visual or textual representation of said missing medication.
  • said display is configured to display said overlaid medication information as text or color indication (e.g. a color code indicating that it is the correct or a wrong medication) overlaid to the displayed image and/or to display a link or button for use by a user to obtain additional information about the displayed medication. For instance, by use of such a link a connection to the internet could be opened to search for additional information or to a certain website providing such additional information. In another embodiment the link may be used to establish a connection with the (internal or external) medication database.
  • color indication e.g. a color code indicating that it is the correct or a wrong medication
  • the medication management device further comprises a segmentation unit for segmenting captured images and recognizing a medication. This enables an improved medication recognition and identification even if several drugs and/or other items are visible in the captured images.
  • the proposed medication management device can be implemented as a separate device particularly manufactured for this purpose.
  • the proposed medication management device may alternatively be a smart phone, tablet PC, handheld PC, laptop, PDA, augmented reality glasses or augmented reality lenses, which is/are adapted for the desired purpose.
  • FIG. 1 shows a first embodiment of a medication management device according to the present invention
  • FIG. 2 shows a second embodiment of a medication management device according to the present invention
  • FIG. 3 shows a third embodiment of a medication management device according to the present invention
  • FIG. 4 shows a fourth embodiment of a medication management device according to the present invention
  • FIG. 5 shows a fifth embodiment of a medication management device according to the present invention.
  • FIG. 6 shows a sixth embodiment of a medication management device according to the present invention.
  • FIG. 1 shows a first embodiment of a medication management device 10 a according to the present invention. It comprises an imaging unit 12 for capturing images of a medication 1 , a medication identification unit 14 for identifying said medication 1 by use of one or more captured images of said medication 1 based on a medication database, and a display 16 for displaying in real time captured images 30 of said medication 1 and overlaid medication information 31 about said medication 1 including medication identification information obtained by said medication identification unit 14 .
  • the medication database is stored in a medication database storage 18 .
  • FIG. 2 shows a second embodiment of a medication management device 10 b according to the present invention.
  • an interface 20 is provided for contacting one or more externally stored medication databases 3 , in particular via a network 2 such as a computer network or a communications network.
  • both internally and externally a medication database is stored and can be accessed by the medication management device. For instance, information on often used medication can be stored in an internal medication database, whereas information on more unusual medication is stored in one or more external medication database(s).
  • FIG. 3 shows a third embodiment of a medication management device 10 c according to the present invention.
  • an additional medication intake information unit 22 is provided for obtaining medication intake information based on the medication identification information and a medication intake scheme specifying which medication shall be taken at which point in time.
  • Said medication intake scheme is stored in this embodiment on an internal medication intake scheme storage 24 .
  • the interface 20 is used for contacting one or more externally stored medication databases 4 , in particular via the network 2 such as a computer network or a communications network.
  • the display 16 is configured to display said medication intake information 32 as part of said overlaid medication information in addition to the image 30 of the medication, in particular the complete video input showing the medication in its real environment, and the medication identification information 31 .
  • this set is compared against the user's medication schedule (also called medication intake scheme herein).
  • This medication intake scheme specifies which medication needs to be taken at which point in time.
  • the scheme can be retrieved from a source such as a personal health record or a medication management service or can be stored and available from any internal/external database.
  • a source such as a personal health record or a medication management service
  • updates to the schedule that have occurred just before the intake will still be taken into account.
  • the applicable set of medication is extracted from the schedule information based on the current time and compared against the determined set of medications. As a result, there can be medications that are missing, superfluous or correct (with respect to both type and quantity). The result of this comparison is used as input to the display for providing appropriate feedback to the user.
  • This information includes the medication information on medication that is part of the schedule and the actual schedule.
  • FIG. 5 shows a fifth embodiment of a medication management device 10 e according to the present invention.
  • a segmentation unit 13 is provided for segmenting captured images and recognizing a medication.
  • a known algorithm as generally used in image processing is preferably used. This segmentation provides to recognize the medication 1 within captured images although several other items (e.g. other medications 1 ′, 1 ′′) are visible in the scene captured by the imaging unit 12 .
  • FIG. 6 shows a practical implementation as a sixth embodiment of a medication management device 10 f according to the present invention.
  • the device 10 f is embodied as a tablet having a built-in camera that captures images of (one or more) medication 1 that is e.g. put on a table top 5 .
  • the mediated reality component adds information to the user's perception of his medication in its real environment via a device such as a smart phone or tablet.
  • a device such as a smart phone or tablet.
  • the latter acts as a visual filter between the actual medication and what the user perceives.
  • the results of the comparison between the detected medication and medication scheme are hence added to the user's perception.
  • For one or more, preferably each, of the detected medications it will indicate whether the medication needs to be taken or not and the reason (e.g. ok, not in schedule, interactions or too many).
  • the location of the medication on the display is known from a preferably provided object segmentation component.
  • missing medications are also displayed in a preferred embodiment.
  • the added information can be further extended by displaying the information known about the medication from the medication database (or providing the option to access this information) and detected medication interactions.
  • the invention can be applied in the area of medication management and is especially interesting for patients that require multiple medications. It can be used as an extension of or be an integral part of a medication management service. As the component can be run or be part of an application that is run on a device such as a smart phone or tablet, it allows the introduction of a verification step of the correctness of medication intake and provide real-time feedback at the place and time of intake. This invention can be integrated within a medication management service and can be extended to provide its results as input to, for example, alert the caregiver when discrepancies are detected, or create overview reports on the medication intake results.
  • a computer program may be stored/distributed on a suitable non-transitory medium, such as an optical storage medium or a solid-state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.
  • a suitable non-transitory medium such as an optical storage medium or a solid-state medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless telecommunication systems.

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PCT/IB2013/055453 WO2014006580A1 (en) 2012-07-05 2013-07-03 Medication management device and method
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